Caliber and range of choice is usually used with the transmitter caliber pipeline system and the same caliber. If the parts to be designed duct system can be based on the flow and flow range to select parent caliber. For electromagnetic flowmeters, the flow rate to 2-4m / s is more appropriate. In special cases such as a liquid with solid particles, taking into account the wear, optional common velocity ≤3m / s, for easy attachment of high-quality wall fluid electromagnetic flowmeter, the choice of flow rate ≤2m / s, a flow rate of later determined that the transmitter can be determined based on the caliber. The transmitter's range can be selected based on two principles: First, the value of the instrument is expected to be greater than the maximum full-scale flow, and second, addressing more than 50% of normal flow meter full scale in order to ensure a certain degree of accuracy. The need for intelligent electromagnetic flowmeter calibration of electromagnetic flowmeters offer high-quality, liquid flow rate requirement should be stable, if it directly from the water pipe or pump the water to calibrate the high-quality choice for electromagnetic flowmeters, liquid flow rate is certainly unstable, so For calibration, it is a very difficult thing. So the use of a highly stable level to provide water. First, the highest figure on the right to open the valve of high quality wholesale electromagnetic flowmeters, water jugs from the left shows, the highest level reaches the position of the valve, the water will flow from the pipes A sink through the valve. And the horizontal length of the pipe A is relatively long. A height in the horizontal plane can be approximated that an area of ??relatively large pool of water, relative to the diameter measurement of electromagnetic flowmeter. A liquid level has remained at such height, so that a flow rate is stable. Such sensors out of the signal is relatively stable. The price of high-quality electromagnetic flowmeters, electromagnetic flowmeters, Liaoning high-quality, force measuring instrument sales leader since the force measured by Shanghai Automation Instrumentation Co., Ltd .. Shanghai Automation Instrumentation Co., force measurement (www.licesh.com) strong, credible, in Shanghai Zhabei District, flow meters and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the force measured since the instrument into the brilliant and you work for a better future!